class Car:
	    # 类属性

	    def drive(self,speed):
	        self.wheels = 4
	        print(f"driving~~~~~{speed}~~~~~")

	    @classmethod
	        print("stop++++++++++++")

	    @staticmethod
	    def test():
	        print("test===================")


	car1 = Car()
	car1.drive(100)
	print(car1.wheels)
	# print(Car.wheels)  type object 'Car' has no attribute 'wheels'
	car1.color = "red"
	print(car1.color)
